You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
848 B
Markdown
34 lines
848 B
Markdown
3 years ago
|
# Using Litex to build a Caravel User Project Area
|
||
|
|
|
||
|
|
Create a module usable for FPGA and tech mapping, containing various Litex structures like CSR, WB, UART, I2C, etc. and
|
||
|
|
custom verilog modules (core, async RAM, GPIO, etc.).
|
||
|
|
|
||
|
|
* create a virtual platform corresponding to the I/O on the Caravel User module
|
||
|
|
|
||
|
|
* create virtual 'soc' design using that platform
|
||
|
|
|
||
|
|
* module can be used for OL synthesis (expand_type set for tech)
|
||
|
|
|
||
|
|
* module can be included in FPGA SOC for testing and development (expand_type set for inferred)
|
||
|
|
|
||
|
|
* create real soc incorporating above, plus clocks, real GPIO connections, etc.
|
||
|
|
|
||
|
|
|
||
|
|
### Virtual Platform
|
||
|
|
|
||
|
|
* create user area
|
||
|
|
|
||
|
|
```
|
||
|
|
a2p_site.py
|
||
|
|
cp build/caravel_user/gateware/mem.init .
|
||
|
|
cp build/caravel_user/gateware/caravel_user.v .
|
||
|
|
```
|
||
|
|
|
||
|
|
* OL didn't die
|
||
|
|
|
||
|
|
```
|
||
|
|
make DESIGN_CONFIG=./designs/sky130hd/a2p_litex/config.mk
|
||
|
|
```
|
||
|
|
|
||
|
|
|